Acid functionalized carbons as catalyst for glycerol etherification with benzyl alcohol

In this paper, the catalytic behaviour of two different carbonaceous systems, commercial carbon (Cc) and synthetic carbon (Cs) functionalized with concentrated sulfuric acid (–SO₃H) and with reduced aryl diazonium salt (–PhSO₃H), was studied in the etherification of glycerol (Gly) with benzyl alcoho...

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Autores principales: Chiosso, María Eugenia, Lick, Ileana Daniela, Casella, Mónica Laura, Merlo, Andrea Beatriz
Formato: Articulo
Lenguaje:Inglés
Publicado: 2020
Materias:
Ciencias Exactas
Química
Glycerol
Etherifcation
Acid catalysts
Sulfonated carbon
Benzyl alcohol
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/128455
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-128455
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Química
Glycerol
Etherifcation
Acid catalysts
Sulfonated carbon
Benzyl alcohol
spellingShingle Ciencias Exactas
Química
Glycerol
Etherifcation
Acid catalysts
Sulfonated carbon
Benzyl alcohol
Chiosso, María Eugenia
Lick, Ileana Daniela
Casella, Mónica Laura
Merlo, Andrea Beatriz
Acid functionalized carbons as catalyst for glycerol etherification with benzyl alcohol
topic_facet Ciencias Exactas
Química
Glycerol
Etherifcation
Acid catalysts
Sulfonated carbon
Benzyl alcohol
description In this paper, the catalytic behaviour of two different carbonaceous systems, commercial carbon (Cc) and synthetic carbon (Cs) functionalized with concentrated sulfuric acid (–SO₃H) and with reduced aryl diazonium salt (–PhSO₃H), was studied in the etherification of glycerol (Gly) with benzyl alcohol (BA). The catalytic activity and selectivity were studied varying the catalyst percentage (5, 10 and 15 wt%) and the initial reactant mass ratio. Taking into account the results obtained, the experimental conditions selected to continue with the catalytic studies were: temperature 393 K, Gly:BA molar ratio 3:1 and a catalyst loading of 10 wt%. Mono- and diethers were the main products. For the Cc-based catalysts, higher conversion (66%) and selectivity (90%) were obtained with the most acidic system, Cc–PhSO₃H. Changing the carbon functionalization method (–PhSO₃H for –SO₃H groups) produced a considerable increase in glycerol conversion (from 23 to 66%) and in selectivity to ME + DE (from 62 to 90%). On the other hand, for both Cs-based systems a great increase in performance was obtained, about 95% conversion after 360 min of reaction. Monoether was the major product of the reaction with a selectivity of 79% for Cs–SO₃H and 87% for Cs–PhSO₃H, which was maintained with reuse. Etherification of glycerol (Gly) with benzyl alcohol (BA) with two carbonaceous systems synthesized in the laboratory and functionalized with –SO₃H and –PhSO₃H.
format Articulo
Articulo
author Chiosso, María Eugenia
Lick, Ileana Daniela
Casella, Mónica Laura
Merlo, Andrea Beatriz
author_facet Chiosso, María Eugenia
Lick, Ileana Daniela
Casella, Mónica Laura
Merlo, Andrea Beatriz
author_sort Chiosso, María Eugenia
title Acid functionalized carbons as catalyst for glycerol etherification with benzyl alcohol
title_short Acid functionalized carbons as catalyst for glycerol etherification with benzyl alcohol
title_full Acid functionalized carbons as catalyst for glycerol etherification with benzyl alcohol
title_fullStr Acid functionalized carbons as catalyst for glycerol etherification with benzyl alcohol
title_full_unstemmed Acid functionalized carbons as catalyst for glycerol etherification with benzyl alcohol
title_sort acid functionalized carbons as catalyst for glycerol etherification with benzyl alcohol
publishDate 2020
url http://sedici.unlp.edu.ar/handle/10915/128455
work_keys_str_mv AT chiossomariaeugenia acidfunctionalizedcarbonsascatalystforglyceroletherificationwithbenzylalcohol
AT lickileanadaniela acidfunctionalizedcarbonsascatalystforglyceroletherificationwithbenzylalcohol
AT casellamonicalaura acidfunctionalizedcarbonsascatalystforglyceroletherificationwithbenzylalcohol
AT merloandreabeatriz acidfunctionalizedcarbonsascatalystforglyceroletherificationwithbenzylalcohol
bdutipo_str Repositorios
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